From the Manufacturer One of the best games in history just got better. The classic gameplay that has been the center of family fun for decades has just been updated with the latest technology. Now both players can control the vibration,the game is even more exciting and more competitive. And it features the most realistic graphics ever on a vibrating football game. Independent vibration control allows each player to adjust the vibration speed. Determine the direction your players run and control a truly multifunctional quarterback. Features authentic NFL detailing. Battery-power lets you play anywhere without wires.